Amerigo said it continues to make progress in processing old tailings, which now represent about 50 percent of total copper production, and remains on target to reach the maximum contractual rate by the end of this year.

Shares of the company were down slightly at 72 Canadian cents Monday morning on the Toronto Stock Exchange.

Amerigo said it continues to make progress in processing old tailings, which now represent about 50 percent of total copper production, and remains on target to reach the maximum contractual rate by the end of this year.

Shares of the company were down slightly at 72 Canadian cents Monday morning on the Toronto Stock Exchange.